The Effect of One Commercial probiotic on Growth Indices and Microbial Load of Intestine and Meat in Broiler Chickens

The study was conducted to evaluate the effect of one commercial probiotic in diet on growth performance and hygienic indices of broiler chickens with using 90 one-day old chicks reared under same condition in two groups with 3 replicates. Chickens in group 1 fed one commercial probiotic according to manufacture instruction. Chickens in group 2 received no supplement in diet. The accumulative growth indices at end of growing period were compared. In 42 days old, chickens slaughtered and breast muscles were sampled for E.coli detection. Cecal content were sampled for E.coli counting. Result showed that chickens received probiotic have significantly higher weight, and lower feed consumption and feed conversion ratio. The adding of probiotic in diet could reduce carcass contamination and microbial load of cecal content. It was concluded that continues administration of probiotic in broiler diet can improve growth indices and hygienic quality of carcass.